Checked fact 196720 Oct 2026AI at work

The post says OpenCode v1 built one system-prompt block containing the agent prompt followed by an environment section, with the only cache breakpoint at the end of that block.

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The exact words it rests on

The problem ended up being in how OpenCode v1 constructed the system prompt: It built one block containing our agent prompt, followed by an environment section with the working directory and the date, and placed the only cache breakpoint at the end of that block.

What the source said when we opened it, on 20 Oct 2026.

The source

Cutting our inference bill by 68% by being obsessive about optimization
Cloudflare Blog · 2026-10-19

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Checked by the notis newsroom on 20 Oct 2026, against the source above.

In the story

Cloudflare says its AI code reviews now cost 68% less 20 Oct 2026

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“The post says OpenCode v1 built one system-prompt block containing the agent prompt followed by an environment section, with the only cache breakpoint at the end of that block.” ai notis, checked 20 Oct 2026. Source: Cutting our inference bill by 68% by being obsessive about optimization (Cloudflare Blog). https://ainotis.com/c/1967

As a reference (APA style)

ai notis. (2026, October 20). The post says OpenCode v1 built one system-prompt block containing the agent prompt followed by an environment section, with the only cache breakpoint at the end of that block [Checked claim 1967]. ai notis. https://ainotis.com/c/1967

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